EP0694713B1 - Control apparatus for hydraulically operated transmission - Google Patents
Control apparatus for hydraulically operated transmission Download PDFInfo
- Publication number
- EP0694713B1 EP0694713B1 EP95108393A EP95108393A EP0694713B1 EP 0694713 B1 EP0694713 B1 EP 0694713B1 EP 95108393 A EP95108393 A EP 95108393A EP 95108393 A EP95108393 A EP 95108393A EP 0694713 B1 EP0694713 B1 EP 0694713B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- oil pressure
- changeover valve
- valve
- hydraulic oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1204—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures for malfunction caused by simultaneous engagement of different ratios resulting in transmission lock state or tie-up condition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
- F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
- F16H61/686—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with orbital gears
Definitions
- the changeover valve there is also inputted the hydraulic oil pressure of the hydraulic engaging element on the downstream side of the solenoid valve as the hydraulic oil pressure for urging the changeover valve towards the closed position.
- the changeover valve is then changed over to the closed position at the time of a failure when the hydraulic oil pressure on the downstream side of the solenoid valve rises by a wrong operation at the time of engaging said another hydraulic engaging element.
- the oil supply to the hydraulic engaging element on the downstream side of the solenoid valve is then arranged to be started from the beginning.
- the first aspect of the present invention is a control apparatus for a hydraulically operated transmission having a plurality of hydraulic engaging elements, comprising: a solenoid valve for controlling hydraulic oil supply to, and discharge from, a predetermined hydraulic engaging element; a changeover valve which is interposed between the solenoid valve and an oil supply passage on an upstream side of the changeover valve and which can be changed over between an open position for establishing a connection between the oil passage and the solenoid valve and a closed position for shutting off the connection; wherein, at the time of engagement of another hydraulic engaging element which should not be engaged simultaneously with the predetermined hydraulic engaging element, engagement of the predetermined hydraulic engaging element is blocked by changing over of the changeover valve to the closed position; wherein the changeover valve is inputted, as a hydraulic oil pressure to urge it towards the closed position, by a hydraulic oil pressure of the predetermined hydraulic engaging element and a hydraulic oil pressure of said another hydraulic engaging element such that, when the hydraulic oil pressure of one of said both hydraulic engaging elements has risen at the
- the changeover valve becomes large in size and the response of the changeover valve at the time of failure becomes poor.
- an oil passage which is in communication with the predetermined hydraulic engaging element and the input oil passage of the working hydraulic oil pressure are connected, via a shuttle valve, to an oil chamber in the changeover valve to input therein the hydraulic oil pressure of the predetermined hydraulic engaging element, the oil chamber can be used also as an input oil chamber for the working hydraulic oil pressure. It is therefore advantageous in that the changeover valve needs not be made large in size.
- numeral 1 denotes a transmission.
- This transmission 1 is constituted by, or made up of, a planetary type transmission which has first through third, i.e., a total of three planetary gears 2 1 , 2 2 , 2 3 , which are provided coaxially with an input shaft 1a, for effecting the changing of a vehicle speed to five forward speeds and one reverse speed.
- the hydraulic oil pressure of the second brake B2 is not inputted to the changeover valve 7. It may, however, be so arranged that the hydraulic oil pressure of the second brake B2 is inputted to the changeover valve 7 as a measure to prepare for failure in the L position.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
Claims (5)
- A control apparatus for a hydraulically operated transmission (1) having a plurality of hydraulic engaging elements, comprising:a solenoid valve (S3) for controlling hydraulic oil supply to, and discharge from, a predetermined hydraulic engaging element (C3);a changeover valve (9) which is interposed between said solenoid valve (S3) and an oil supply passage (L2) on an upstream side of said solenoid valve (S3) and which can be changed over between an open position for establishing a connection between said oil passage (L2) and said solenoid valve (S3) and a closed position for shutting off the connection;wherein, at the time of engagement of another hydraulic engaging element (B1) which should not be engaged simultaneously with said predetermined hydraulic engaging element (C3), engagement of said predetermined hydraulic engaging element (C3) is blocked by changing over of said changeover valve (9) to said closed position;hydraulic oil pressure input means to supply as an input, as a hydraulic oil pressure to urge said changeover valve (9) to said closed position, a working hydraulic oil pressure of predetermined pressure when said changeover valve (9) is changed over to said closed position, said working hydraulic oil pressure being held constant even by changing over of said changeover valve (9).
- An apparatus for controlling a hydraulically operated transmission (1) having a plurality of three or more hydraulic engaging elements, said transmission having a plurality of transmission trains to be established by a simultaneous engagement of respective two of said hydraulic engaging elements, said apparatus comprising:a solenoid valve (S2, S4) for controlling hydraulic' oil supply to, and discharge from, a predetermined hydraulic engaging element (C2, B1);a changeover valve (7) which is interposed between said solenoid valve (S2, S4) and an oil supply passage (L2) on an upstream side of said solenoid valve (S2, S4) and which can be changed over between an open position for establishing a connection between said oil passage (L2) and said solenoid valve (S2, S4) and a closed position for shutting off the connection;hydraulic oil pressure input means to supply as an input, as a hydraulic oil pressure to urge said changeover valve (7) to said closed position, a working hydraulic oil pressure of a predetermined pressure when said changeover valve (7) is changed over to said closed position, said working hydraulic oil pressure being held constant even by changing over of said changeover valve (7).
- An apparatus for controlling a hydraulically operated transmission according to claim 1 or 2, wherein said hydraulic oil pressure input means comprises:an input oil passage (L11, L12) of the working hydraulic oil pressure which is communicated with an oil chamber provided in said changeover valve (7, 9) to input therein the working hydraulic oil pressure; anda valve portion (7i, 9g) which is integral with said changeover valve (7, 9) and which is interposed in said input oil passage (L11, L12) so as to open said input oil passage (L11, L12) at said closed position of said changeover valve (7, 9).
- An apparatus for controlling a hydraulically operated transmission according to claim 3, wherein an oil passage (L4, L6, L5) which is in communication with said predetermined hydraulic engaging element (C2, B1, C3) and said input oil passage (L11, L12) are connected, via a shuttle valve (81, 82, 10), to an oil chamber (7d, 7e, 9b) which is provided in said changeover valve (7, 9) to input therein the hydraulic oil pressure of said predetermined hydraulic engaging element (C2, B1, C3), whereby said oil chamber is used also as an input oil chamber for the working oil pressure.
- An apparatus for controlling a hydraulically operated transmission according to claim 1 or 2, wherein said working oil pressure is a hydraulic oil pressure of said oil supply passage (L2, L1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP177947/94 | 1994-07-29 | ||
JP6177947A JP2952553B2 (en) | 1994-07-29 | 1994-07-29 | Control device for hydraulically operated transmission |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0694713A2 EP0694713A2 (en) | 1996-01-31 |
EP0694713A3 EP0694713A3 (en) | 1996-06-12 |
EP0694713B1 true EP0694713B1 (en) | 1998-08-26 |
Family
ID=16039866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95108393A Expired - Lifetime EP0694713B1 (en) | 1994-07-29 | 1995-05-31 | Control apparatus for hydraulically operated transmission |
Country Status (5)
Country | Link |
---|---|
US (1) | US5538479A (en) |
EP (1) | EP0694713B1 (en) |
JP (1) | JP2952553B2 (en) |
KR (1) | KR100204125B1 (en) |
DE (1) | DE69504257T2 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100282899B1 (en) * | 1994-06-22 | 2001-10-22 | 정몽규 | Hydraulic Control Device for Automotive Automatic Transmission |
JP3721661B2 (en) * | 1996-10-23 | 2005-11-30 | アイシン精機株式会社 | Hydraulic control device for automatic transmission |
JP3553307B2 (en) * | 1997-02-17 | 2004-08-11 | ジヤトコ株式会社 | Control valve device for automatic transmission |
JP3354862B2 (en) * | 1998-02-06 | 2002-12-09 | ダイハツ工業株式会社 | Hydraulic control device for automatic transmission |
US6319165B1 (en) | 1998-12-01 | 2001-11-20 | Aisin Aw Co., Ltd. | Hydraulic control device for automatic transmission |
JP4167772B2 (en) | 1999-03-03 | 2008-10-22 | 本田技研工業株式会社 | Control device for automatic transmission for vehicle |
JP4269399B2 (en) * | 1999-03-23 | 2009-05-27 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
JP4325105B2 (en) * | 1999-12-27 | 2009-09-02 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
JP3519339B2 (en) | 2000-03-29 | 2004-04-12 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
JP3657858B2 (en) | 2000-05-31 | 2005-06-08 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
KR100714815B1 (en) * | 2000-08-24 | 2007-05-03 | 아이신에이더블류 가부시키가이샤 | Hydraulic pressure control apparatus for automatic transmission |
US6712466B2 (en) * | 2001-10-25 | 2004-03-30 | Ophthonix, Inc. | Eyeglass manufacturing method using variable index layer |
JP2006046542A (en) * | 2004-08-05 | 2006-02-16 | Toyota Motor Corp | Hydraulic controller of automatic transmission for vehicle |
DE102005012586B4 (en) | 2005-03-18 | 2024-02-15 | Zf Friedrichshafen Ag | Electro-hydraulic transmission control device |
JP4592586B2 (en) | 2005-12-28 | 2010-12-01 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
US7621837B2 (en) | 2005-12-28 | 2009-11-24 | Aisin Aw Co., Ltd. | Hydraulic control apparatus for an automatic transmission |
JP4484815B2 (en) * | 2005-12-28 | 2010-06-16 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for multi-stage automatic transmission |
JP4484816B2 (en) | 2005-12-28 | 2010-06-16 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
CN101779064B (en) * | 2007-12-27 | 2013-01-02 | 爱信艾达株式会社 | Controller of automatic shift |
US20090283166A1 (en) * | 2008-05-19 | 2009-11-19 | Dnj Components, Llc | Transmission solenoid adapter |
JP5139353B2 (en) | 2009-03-10 | 2013-02-06 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
JP5164895B2 (en) * | 2009-03-10 | 2013-03-21 | アイシン・エィ・ダブリュ株式会社 | Hydraulic control device for automatic transmission |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2917272B2 (en) * | 1987-11-26 | 1999-07-12 | 三菱自動車工業株式会社 | Hydraulic control device for automatic transmission for vehicles |
JP2689421B2 (en) * | 1987-02-25 | 1997-12-10 | 三菱自動車工業株式会社 | Hydraulic control device for automatic transmission for vehicles |
JP2839937B2 (en) * | 1990-06-25 | 1998-12-24 | 本田技研工業株式会社 | Shifting hydraulic control device for transmission |
JP3186760B2 (en) * | 1990-08-28 | 2001-07-11 | マツダ株式会社 | Automatic transmission hydraulic control circuit |
US5305665A (en) * | 1992-09-02 | 1994-04-26 | Jatco Corporation | Speed change control device of automatic transmission |
-
1994
- 1994-07-29 JP JP6177947A patent/JP2952553B2/en not_active Expired - Fee Related
-
1995
- 1995-05-30 US US08/452,507 patent/US5538479A/en not_active Expired - Lifetime
- 1995-05-31 DE DE69504257T patent/DE69504257T2/en not_active Expired - Lifetime
- 1995-05-31 EP EP95108393A patent/EP0694713B1/en not_active Expired - Lifetime
- 1995-07-14 KR KR1019950020807A patent/KR100204125B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0694713A3 (en) | 1996-06-12 |
DE69504257D1 (en) | 1998-10-01 |
US5538479A (en) | 1996-07-23 |
KR100204125B1 (en) | 1999-06-15 |
EP0694713A2 (en) | 1996-01-31 |
DE69504257T2 (en) | 1999-03-11 |
JPH0842681A (en) | 1996-02-16 |
JP2952553B2 (en) | 1999-09-27 |
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